Hello, I was against a mega sableye and first turn I used protect and they used knock off. Second turn I used magma storm and they used knock off again. Both hit. They were then able to switch out the mega sableye. Screenshot below.[/URL][/IMG]
Ghost-type Pokemon can't be trapped by any means(Shadow Tag, Mean Look, Block, Whirlpool, Magma Storm etc.) as of Gen 6.